Pot spinning mechanism



1, 17,936- G. GLATZEL ET Al. i 2,052,707

* I POT SPINNING MECHANISM Filed Jan. 9, 1933 2 Sheets-Sheet 1f Dec. l, 1936. GLATZEL ET AL 2,062,707

`PoT SPINNING MECHANISM Filed Jan. 9 1933 2 Sheets-Sheet 2 Patented Dec. l, 1936 Po'r SPINNING MECHANTSM Gunther Glatzel and Viktor Beplate, Sydowsaue,

near Stettin, Germany, assignors to North* American Rayon Corporation, New York, N. Y., l a. corporation of Delaware f Application January 9, 1933, serial No. 650mm InGermany January 11, 1932 8 Claims.

Our present invention relates to improvements in spinning machines and more particularly to a method of and apparatus for collecting threads and filaments during the period in which the filled collecting receivers are being replaced by empty receivers.

In the usual spinning machines such as,l for example, a pot spinning machine, the said machines comprise generally, a plurality of spinlo nerettes through which the threads are extruded. Each spinerette is provided with a godet wheel or guide roller over which the spunv thread is passed, a spinning pot and a thread guide tube which is reciprocated to build up the desired l5 thread cake in the spinning pot. When each spinning pot becomes filled, it must be removed and replaced by an lempty pot. During the period in which the spinning pots are changed some provision must be made to collect the spun thread since in practice it is impossible to stop the spinning thereof during that period. Such period is designated in the textile arts as the doffing period.

One object of our present invention is to provide a suitable process for collecting the thread either during the doing period of one spinning pot or the plurality of spinning pots constituting.

the pot spinning mechanisms. This process consists generally in leading each thread over its '30 respective godet wheel or guide and collecting all the threads on a take-up means which is removably connected to the last one in a row of godet wheels and which is removed from the machine after the doing thereof has been performed.

Another object of our present invention is to provide an improved form of take-up means which by its construction may be readily and quickly attached to or removed from a godet wheel or guide roller.

These and other objects will become more apparent from a study of the following description and by reference to the attached drawings, in which:

Figure 1 is a partial side diagrammatic elevational View of a pot spinning mechanism demonstrating our novel process, and showing our inrproved take-up means in position on a godet Wheel oi guide roller;

Figure 2 is a sectional detail View of our improved take-up device; and

Figure 3 is a top plan view thereof.

In the several drawings in which like numerals indicate like parts, we have shown a spinning pot machine comprising a plurality of spinning pots of the godet wheels thereby preventing mutila- I 0, each provided-with a thread guide tube II which serves to guide the thread I2 passing over a godet'wheel or guide" roller I 3from,the's` pin nerette I4 (but one of which is showml;` VThe I thread take-up device I5 is secured to theend 5 one of the series of godet wheels andeach thread is passed over its respective godet wheel and is wound on the take-up devicev during the cloning period; When `the necessary replacement of the lled with'empty spinning potshas been accomplished, each thread is "cut and is led over itsrespective godet Wheel and through itsfrespective guide tube'into the spinning pots. -When it is again necessary to dont' the machine, each thread A. is cut and again led to the take-up device which 15 has again been Aplaced in position on the Agodet Wheel; e. Y,

In Figures 2 and 3,We have shownthe specic construction of our `neW'-'take`up"-device.'vv This I device consists of a' basefplate I 8 *providedv with 2o four outwardly extending arms I'I so that the de-V vice is essentially in the form of a cross. Located at the extremity of each arm is an upstanding resilient shoulder or member' 19. The Vradial distance of these shoulders or members from the 25 axis of the take-up device is greater than the radius of the godet wheel or guide roller I3 upon which the said device is positioned. By Athis construction the outside surface of the godet Wheel is prevented from injury throughV contact with the shoulders I9. Each arm is Valso provided with a spring clamp 20, which being bent in-v wardly at its outer end permits the ready placing of the device on the godet wheel. Because of the resilient nature of the clamps, the takev 35 up device is held firmly in position on the godet Wheel or guide roller. As shown, the clamps con` sist of a pair of strips so arrangedcrosswse to each other and are riveted or otherwise securedv to the arms I'I. The aforesaid clamps are formed 40 on the outer ends of eachr strip and resiliently I engage the inner surface of the godet wheel.

To afford easy handling of the take-up device, a. handle 2| is rotatably secured to a bolt 22. v

It will thus be 'appreciated that We have pro`v vided a new method of 'and device for the handling of the threads in a pot spinning mechanism during the dofling period. The take-up device it-r self may beso constructed as to permit the reduction of its diameter so as to permit the vready removal of the threads Wound thereon. Moreover the shoulders upon which the threads'are wound do not contact with the guide surfaces tion thereto. In fact the clampingnrembers alone come in contact with the godet wheel on the inner surface thereof. The provision of a handle renders the device susceptible of being quickly and easily attached to and removed from a godet Wheel thereby resulting in a minimum loss in the time required to make ready the machine for Having now fully describedour invention what we desire to claim as new is:

1. In a method of the class described for doff-f'rxlz ing spinning machines, each including: a plural-v ity of spinning stations, the steplof'secri'ng a"" receiver to one of the threadl guide; rollersof a.k pot spinning machine andl leadingffthe vthread :L

from all spinning stations during the doiing period to said receiver.

2. A take-up device adapted-tribe securedqto H a thread guide roller of a potspinning machine;

comprising a base plate provided with upstanding members adapted to t over the outer'surface of the thread guideV roller;- and meansadapted to contact with the inner surface ofthe thready guide roller yto hold `the take-up device in position on said roller.

4machine comprising afbase 'plate .providedwith upstandingthread receiving` means; the-radial distance of said thread receiving means from` the axis of the 'device being greaterthan the radius of 'the thread guide'roller -uponwhich the device is adapted :to be securedwhereby said thread receiving means will be out of contact with the outer surface of said thread guide roller, and means secured to said base plate adapted resiliently to engage the inner surface of said thread guide roller to removably hold said take-up device in position.

51."In'f'a machine for use in the'p'roduction of artificial filaments, in combination, a plurality of extrusion devices, a plurality of take-up or 'collection means, and a plurality of guides comprisingrotating Wheel-like elements situated betweenthe said extrusion devices and take-up I means, one of said v guides having associated therewith a take-up device comprising a base with an"v extending flange adapted to cover the outer "surface ofsaid guide, gripping means for holding ljsaiddevicein .operative position on said guide,

andarotatable handle whereby the device may be applied to or removed from the guide without halting the rotation of the guide.

`I 6., In Ithe manufacture of artificial yarn, filamentsgandrthe like by the centrifugal spinning method, the stepsof extruding the yarn from a group of spinnerets and collecting it in a plurality vof `centrifugal pots, and of simultaneously passing all of the yarn extruded by the spinneret group,- over a singler take-.up roller While the pots f or this-group are being doffed.

'1.-Inthe Vdoiling of a plurality of centrifugal pots,` `the step of simultaneously leading the yarn froml the various spinnerets feeding the pots over a single take-:up roller during the do'ing.

. p8. In amethod for simplifying the doiing of apluralitybfl spinning pots, the step of providing a receiver, and,- While doing the said pots, sijmultaneously lleading the yarn from the various -nspinnerets serving these potsv to said receiver.

GNTHER GLATZEL.

l VIKTOR BEPLATE. 

